DEF Refractometer SCR and EPA 2010 - OTC Tools and Equipment

The OTC 5025 DEF Refractometer is an essential professional tool designed for accurately verifying Diesel Exhaust Fluid (DEF) quality in SCR-equipped diesel engines. It allows technicians to precisely measure urea concentration, ensuring DEF compliance with required specifications to prevent engine derate conditions and protect sensitive aftertreatment components on EPA 2010 and newer emissions systems. Its robust, compact design integrates seamlessly into demanding fleet maintenance, dealer service, and mobile repair environments.

Key Features

• Precise Urea Concentration Measurement: Accurately verifies DEF quality, measuring urea percentage to ensure compliance with SCR and EPA 2010 emissions system requirements.
• Protects Aftertreatment Systems: Helps prevent costly issues like NOx efficiency faults, engine derate, and damage to dosing hardware by identifying off-spec DEF.
• Professional-Grade Durability: Constructed with a rugged housing and resilient optics to withstand the demands of daily use in professional shop, fleet, and mobile service environments.
• Clear Optical Scale: Features an easy-to-read, direct refractometer scale for quick and accurate interpretation, streamlining routine diagnostics.
• Portable and Field-Ready: Compact and lightweight design makes it ideal for on-site testing of bulk DEF deliveries, storage tanks, and vehicle reservoirs directly at the point of service.

Applications

The OTC 5025 is designed for professional applications requiring DEF quality testing, including on-road trucks and buses, municipal and vocational fleets, agricultural tractors, construction and mining equipment, and industrial power units. It is suitable for routine preventative maintenance inspections, confirming fluid integrity after storage or transfer, diagnosing derate or DEF/NOx-related fault codes, and ensuring DEF quality in bulk tanks and service trucks.

Specifications

• Model: OTC 5025 DEF Refractometer SCR and EPA 2010
• Measurement: Urea concentration in Diesel Exhaust Fluid (DEF) for SCR/EPA 2010 systems
• Weight: 1.55 lb
• Dimensions: 9.5" x 5.8" x 3.5"